Unless they have changed the definition, back when I studied it the mole was defined as the number of particles found in 12 grams of C (C-12), 6.022*10^23. So

Unless they have changed the definition, back when I studied it the mole was defined as the number of particles found in 12 grams of C (C-12), 6.022*10^23. So the mole depended on the gram.